What is the problem with the dry branches of the peach tree?

The branches of the peach tree are dry, may be infected with peach blight, which is a fungal disease, usually do a good job of preventive measures, peach trees do a good job of fertilizer and water management, do a good job of reasonable pruning, after the disease, use sharp scissors to scrape off the diseased spots, and use copper sulfate 100 times liquid to coat the wound. It may also be infected with peach root rot, usually loosen the soil, do a good job of water and fertilizer management, and irrigate the roots with pentachloronitrobenzene, methyl tropium, and double effect spirit in time after the onset of the disease.

Peach blight. Damage: The branches of the peach tree are dry, and it may be infected with peach blight, which is a fungal disease, which mainly affects the branch part.

In the early stages of the disease, the diseased part of the branch cortex is slightly protruding, slightly purplish-red in color, and there will also be gelatinization, which eventually leads to the death of part of the branch cortex, and some small black dots appear on the surface. Peach blight is prone to occur when the tree is low, pruned too much, and the branches are frozen in winter.

Prevention and control methods: Usually do a good job of fertilizer and water management for the peach trees in the orchard, do a reasonable pruning, and reasonably retain the fruit to ensure the growth of good trees. After seeing that the peach tree is diseased, the lesion part should be scraped off with sharp scissors, and the wound should be coated with 100 times of copper sulfate.

Peach mildew spot perforation, also known as peach brown perforation, damages the leaves, branches, flower buds and fruits of peach trees.

The same is true for the damage to nectarine trees.

The lesions on the leaves, which are pale yellowish-green at first, then turn brown, round or irregularly shaped, with a diameter of 2-6 mm.

Young. Most of the leaves are scorched after being killed and do not form perforations.

When the temperature is high, black mold grows on the back of the lesion, that is, the conidia and conidia of the pathogen, and some are produced after they fall off.

After the lesion falls off, a perforation forms on the leaf.

The shoots are damaged, and the bud is centered on the formation of oblong lesions, the edges are purple-brown, and cracks and gum flow occur.

The flower stalk is infected and the flowers dry up and fall off before they open.

The lesions on the fruit are small and round, purple at first, gradually turning brown, red at the edges, slightly concave.

The dry leaves of the peach tree may be due to the following reasons:1Water shortage:

Peach trees need plenty of water to grow, and if the soil is dry and dehydrated, it can cause the leaves to dry out. Hashicha 2Pests and diseases:

Peach trees can be attacked by pests such as aphids, spider mites, aphids, etc., which can suck up the sap of the peach tree, causing the leaves to dry up. 3.Nutritional deficiencies:

Peach trees need adequate nutrients to grow, and if there is a lack of nutrients in the soil, the leaves of the peach tree will dry out. 4.Environmental impact:

The environment in which the peach tree grows can also affect the health of its leaves, such as high temperature and dryness, strong winds, sunburn, etc., which may cause the leaves of the peach tree to dry out. If the leaves of the peach tree are dry, they should be maintained in time. First of all, check whether the soil is short of water and nutrients, and replenish it as soon as possible; secondly, spraying the chemical solution to prevent the invasion of pests and diseases; Finally, in hot weather, the peach tree can be shaded or sprayed with water to reduce the ambient temperature.

The above measures can effectively prevent and ** peach tree leaves dry out.

It may be a lack of water, it may be a lack of light, it may be a lack of organic fertilizer, it may be a peach blight.

This is because the peach tree is particularly short of water, and after the lack of water, it is relatively dry.

Because of insufficient light, improper watering, lack of nutrients, and no timely pruning of branches and leaves.

1. Excessive pruning.

During the growth period, in order to ventilate and transmit light to the densely planted peach trees, excessive pruning, and cut off a large number of green leaves and branches, resulting in the sudden loss of a large number of nutrient-making leaves, its own respiration, photosynthesis, and transpiration are seriously weakened, and the ability of the root system to absorb nutrients is also sharply reduced, and the nutrients are seriously insufficient, and the metabolism is disordered.

Second, there are the following reasons:

Insufficient oxygen in the soil. Peach trees are more active in root respiration, such as peach trees planted in heavy or compacted soils.

When peach trees have too much water in the early stages of growth, it can also cause difficulty breathing in the root system.

The soil is too salty. Peach trees planted in heavy saline land often have yellowing leaves.

Applying too much nitrogen or phosphorus fertilizer can also affect the absorption of nutrients by peach trees, resulting in yellowing of leaves.

3. Root diseases lead to yellowing of leaves.

1. Adverse effects of toxic substances on the root system. For example, after a large number of dead roots die due to heavy pruning or other reasons, they will rot and decompose in the soil to produce toxic substances, which will poison young roots and new roots, thereby reducing the ability of roots to absorb nutrients, resulting in abnormal metabolism and yellow leaves.

2. Root pests and diseases. Some peach trees suffer from root cancer, root rot, gum disease, root-knot nematodes and other root diseases and pests, which weaken the tree, affect the growth of the root system, and destroy the root system's ability to absorb nutrients, resulting in insufficient nutrients and yellowing of leaves.

Root rot causes yellowing.

Some peach orchards are applied with unrotted organic fertilizer or uneven fertilization, and the fertilizer is applied directly to the root system and the root system is burned, which will also cause the leaves of peach trees to turn yellow.

Hello, peach tree dry blight can be used antibacterial agents, the specific measures are as follows: 1. To strengthen agricultural control, reasonable pruning, to prevent the decline of comfort, after the onset of the disease to remove the disease, and then use 20% antibacterial agent on the wound after the judgment. 2. Prune diseased branches, prune some diseased branches infected with viruses, and then apply benzomyl emulsifiable concentrate for prevention and control.

3. Use the drug ** to prevent Bi from recurring next time, so it is necessary to use methyl mobzin medicine on the peach tree after ** is good to let the wound of the peach tree heal.

Hello, there are many reasons why peach trees have rotten roots.

First, the rotten roots of peach trees caused by frost damage:

This is a physiological disease. The frozen parts are generally in the rhizomes of peach trees. Frostbite appears in the affected area.

Second, the root rot of the peach tree caused by the root rot of the peach tree:

The fibrous roots of the peach tree are first affected, and then to the lateral roots and taproots. When the onset of the peach tree is slow, only the tip or edge of the leaf is slightly scorched, and the middle part of the leaf remains normal. At the onset of the disease, the peach tree suddenly loses water and becomes wilted.

Under normal circumstances, the growth of peach trees is weak after the onset of the disease, the new branches are slow, the flowers and fruits cannot be set normally, and the leaves are not round and a little wilted. In severe cases, the underground roots of the peach tree rot. The corresponding backbone shoots die.

The xylem ducts turn brown and the bark is separated from the wood.

Third, the peach tree root rot caused by the purple feather disease of the peach tree:

The fine roots of the peach tree first develop the disease, and then spread to the lateral roots of the peach tree, and the taproot reaches the base of the peach trunk. The main feature is the appearance of many lilac cotton wool-like feathered mycelial layers in the diseased part, which coat the entire diseased roots of the peach tree.

Fourth, peach tree root rot caused by peach root cancer:

It is mainly manifested by the production of tumors of different sizes in the roots. The tumor is spherical and has a rough and uneven surface. Over time, the tumor becomes lignified and hardens to form irregular cavities. The more wounds in the roots, the more severe the disease.

Prevention and control methods of peach tree root rot:

The first is to choose cold-resistant varieties, and to whiten the trunk during the winter tube. Minimize mechanical damage to peach trees in farming operations. If the central diseased plant is found, the soil can be picked up to dry the roots, the diseased roots that have been susceptible can be intercepted, and the soil can be disinfected with quicklime or pentachloronitrobenzene.

In severe cases, the diseased strains are removed.

The second is to strengthen the management of soil, fertilizer and water, and reasonable pruning and reasonable load.

Root rot must have occurred

Most of the peach root rot disease occurs in summer and autumn, the leaves of the peach tree with root rot are wilted, the young leaves die, the color of the new shoots turns brown and finally die, the roots appear to rot symptoms, and the whole tree dies in severe cases. When the root rot of peach tree is relatively slow, the initial leaf color gradually turns yellow, and finally turns brown and dry, and in severe cases, the root rots, wilts and dies.

Field management. 1. Loose soil. In September, dig a large groove and apply organic fertilizer deeply (generally the depth of the groove is 50-100cm).

2. Reasonable load. Keep the tree strong by pruning and loading it properly.

3. Uniform water supply. Do not water too often, do not have a long-term drought, the specific irrigation period, should be determined according to the water demand of peach trees in different growth periods, how much precipitation, soil properties, etc.

Agricultural control. Strengthen the management of soil, fertilizer and water, increase the application of organic fertilizer and Bika water-soluble fertilizer, reasonable irrigation, increase the content of organic matter, and improve soil structure. During the growing season, cultivate and weed in time to protect moisture. Activate the soil layer, pay close attention to the prevention and control of other pests and diseases, prune reasonably, control the size of the year, and keep the tree strong.

Broken root watering potion: peach tree root rot, dig deep around the diseased plant, dig out some of the root system, bask in the sun for a few days in good weather, and then water 500 times the root of the rot, it is best to dig the yellow mud from the disease-free ground and fill it around the root. The branches on the tree should be properly pruned, and the long fruiting branches should be shortened to promote the growth of new branches, laying a good foundation for next year's fruiting.

Dry dry branches of peach trees is a common disease, and the main field is caused by the influence of environmental factors and pathogens. First of all, environmental factors include climate, soil, moisture and other factors, if these factors are not suitable, it will cause the new branches of the peach tree to dry out. Secondly, bacterial infection is also one of the causes of the drying up of new branches of peach trees, and the common pathogens are anthracnose and powdery mildew.

In order to prevent and dry out of new branches of peach trees, the following measures can be taken: strengthen management and maintain suitable environmental conditions; Detect diseases in time and take corresponding anti-skin treatment measures, such as spraying fungicides; Prune peach trees regularly to promote the growth of new branches.